Coherent confocal microscope with a phase-only filter in its extended source

Optoelectronics Letters - Tập 2 - Trang 104-106 - 2006
Chu-ping Yang1
1Physics Department, South China Agricultural University, Guangzhou, China

Tóm tắt

The phase information of an extended source is reconstructed by use of a two-zone (annular) phase-only filter in a coherent confocal scanning optical microscope. The dependence of its resolution on its source size is investigated theoretically by its three-dimensional optical transfer function (3D OTF). The results show that the resolution is improved, even though the source size is enlarged.

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